JAVA工具類(5) --- 批量匯入excel表格資料到資料庫中
阿新 • • 發佈：2019-01-29
1、建立匯入抽象類
package com.gcloud.common.excel;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintStream;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.eventusermodel.EventWorkbookBuilder.SheetRecordCollectingListener;
import 2、建立匯入介面
package com.gcloud.common.excel;
import java.util.List;
public interface HxlsOptRowsInterface {
public static final String SUCCESS="success";
/**
* 處理excel檔案每行資料方法
* @param sheetIndex
* @param curRow
* @param rowlist
* @return success：成功，否則為失敗原因
* @throws Exception
*/
public String optRows(int sheetIndex, int curRow, List<String> rowlist) throws Exception;
}3、建立實現類， 在這個方法實現把匯入的資料新增到資料庫中
package com.gcloud.common.excel;
import java.util.List;
public class HxlsInterfaceImpl implements HxlsOptRowsInterface {
@Override
public String optRows(int sheetIndex, int curRow, List<String> datalist)
throws Exception {
//在這裡執行資料的插入
//System.out.println(rowlist);
//saveData(datalist);
return "";
}
}4、匯入工具實現
package com.gcloud.common.excel;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
/**
* excel匯入工具
* Created by charlin on 2017/9/7.
*/
public class ExcelImportUtil extends HxlsAbstract{
//資料處理bean
private HxlsOptRowsInterface hxlsOptRowsInterface;
//處理資料總數
private int optRows_sum = 0;
//處理資料成功數量
private int optRows_success = 0;
//處理資料失敗數量
private int optRows_failure = 0;
//excel表格每列標題
private List<String> rowtitle ;
//失敗資料
private List<List<String>> failrows;
//失敗原因
private List<String> failmsgs ;
//要處理資料所在的sheet索引,從0開始
private int sheetIndex;
public ExcelImportUtil(String filename, int sheetIndex, HxlsOptRowsInterface hxlsOptRowsInterface) throws IOException,
FileNotFoundException, SQLException {
super(filename);
this.sheetIndex = sheetIndex;
this.hxlsOptRowsInterface = hxlsOptRowsInterface;
this.rowtitle = new ArrayList<String>();
this.failrows = new ArrayList<List<String>>();
this.failmsgs = new ArrayList<String>();
}
@Override
public void optRows(int sheetIndex,int curRow, List<String> rowlist) throws Exception {
/*for (int i = 0 ;i< rowlist.size();i++){
System.out.print("'"+rowlist.get(i)+"',");
}
System.out.println();*/
//將rowlist的長度補齊和標題一致
int k=rowtitle.size()-rowlist.size();
for(int i=0;i<k;i++){
rowlist.add(null);
}
if(sheetIndex == this.sheetIndex){
optRows_sum++;
if(curRow == 0){//記錄標題
rowtitle.addAll(rowlist);
}else{
String result = hxlsOptRowsInterface.optRows(sheetIndex, curRow, rowlist);
if(!result.equals(hxlsOptRowsInterface.SUCCESS)){
optRows_failure++;
//失敗資料
failrows.add(new ArrayList<String>(rowlist));
failmsgs.add(result);
}else{
optRows_success++;
}
}
}
}
public long getOptRows_sum() {
return optRows_sum;
}
public void setOptRows_sum(int optRows_sum) {
this.optRows_sum = optRows_sum;
}
public long getOptRows_success() {
return optRows_success;
}
public void setOptRows_success(int optRows_success) {
this.optRows_success = optRows_success;
}
public long getOptRows_failure() {
return optRows_failure;
}
public void setOptRows_failure(int optRows_failure) {
this.optRows_failure = optRows_failure;
}
public List<String> getRowtitle() {
return rowtitle;
}
public List<List<String>> getFailrows() {
return failrows;
}
public List<String> getFailmsgs() {
return failmsgs;
}
public void setFailmsgs(List<String> failmsgs) {
this.failmsgs = failmsgs;
}
}5、匯入實現方法：
public static void main(String[] args){
ExcelImportUtil importUtil;
try {
importUtil = new ExcelImportUtil("d:/data.xls",0, new HxlsInterfaceImpl());
importUtil.process();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}———————————————————————
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